conn: fix UDP port byteorder in recvfrom
conn: fix UDP port byteorder in recvfrom

Additionally cleans up some superfluous functions.

shady33/RIOT,lazytech-org/RIOT,toonst/RIOT,alignan/RIOT,attdona/RIOT,lazytech-org/RIOT,binarylemon/RIOT,yogo1212/RIOT,syin2/RIOT,Hyungsin/RIOT-OS,jasonatran/RIOT,jasonatran/RIOT,jasonatran/RIOT,OTAkeys/RIOT,gautric/RIOT,brettswann/RIOT,katezilla/RIOT,hamilton-mote/RIOT-OS,rousselk/RIOT,mtausig/RIOT,authmillenon/RIOT,immesys/RiSyn,beurdouche/RIOT,LudwigOrtmann/RIOT,lazytech-org/RIOT,basilfx/RIOT,dkm/RIOT,jremmert-phytec-iot/RIOT,Ell-i/RIOT,zhuoshuguo/RIOT,mziegert/RIOT,rajma996/RIOT,OlegHahm/RIOT,kbumsik/RIOT,hamilton-mote/RIOT-OS,rakendrathapa/RIOT,mfrey/RIOT,plushvoxel/RIOT,mfrey/RIOT,kb2ma/RIOT,Hyungsin/RIOT-OS,shady33/RIOT,LudwigKnuepfer/RIOT,TobiasFredersdorf/RIOT,Josar/RIOT,jfischer-phytec-iot/RIOT,aeneby/RIOT,authmillenon/RIOT,stevenj/RIOT,ant9000/RIOT,cladmi/RIOT,avmelnikoff/RIOT,rakendrathapa/RIOT,adjih/RIOT,katezilla/RIOT,neumodisch/RIOT,miri64/RIOT,miri64/RIOT,asanka-code/RIOT,rfuentess/RIOT,asanka-code/RIOT,wentaoshang/RIOT,MohmadAyman/RIOT,asanka-code/RIOT,RIOT-OS/RIOT,malosek/RIOT,kerneltask/RIOT,alignan/RIOT,lebrush/RIOT,adrianghc/RIOT,dkm/RIOT,hamilton-mote/RIOT-OS,foss-for-synopsys-dwc-arc-processors/RIOT,jasonatran/RIOT,rakendrathapa/RIOT,thomaseichinger/RIOT,LudwigKnuepfer/RIOT,OlegHahm/RIOT,jfischer-phytec-iot/RIOT,kaleb-himes/RIOT,josephnoir/RIOT,brettswann/RIOT,toonst/RIOT,stevenj/RIOT,lazytech-org/RIOT,mziegert/RIOT,asanka-code/RIOT,rfuentess/RIOT,cladmi/RIOT,RBartz/RIOT,brettswann/RIOT,wentaoshang/RIOT,attdona/RIOT,d00616/RIOT,mtausig/RIOT,jremmert-phytec-iot/RIOT,kaspar030/RIOT,kbumsik/RIOT,jfischer-phytec-iot/RIOT,OTAkeys/RIOT,avmelnikoff/RIOT,ks156/RIOT,OTAkeys/RIOT,kb2ma/RIOT,authmillenon/RIOT,binarylemon/RIOT,neiljay/RIOT,A-Paul/RIOT,neiljay/RIOT,tfar/RIOT,herrfz/RIOT,thomaseichinger/RIOT,katezilla/RIOT,biboc/RIOT,shady33/RIOT,plushvoxel/RIOT,dailab/RIOT,attdona/RIOT,malosek/RIOT,mziegert/RIOT,katezilla/RIOT,mziegert/RIOT,RubikonAlpha/RIOT,malosek/RIOT,Ell-i/RIOT,lazytech-org/RIOT,rousselk/RIOT,Josar/RIOT,Yonezawa-T2/RIOT,biboc/RIOT,gautric/RIOT,rajma996/RIOT,Yonezawa-T2/RIOT,aeneby/RIOT,RubikonAlpha/RIOT,backenklee/RIOT,altairpearl/RIOT,A-Paul/RIOT,roberthartung/RIOT,lebrush/RIOT,LudwigKnuepfer/RIOT,katezilla/RIOT,syin2/RIOT,asanka-code/RIOT,cladmi/RIOT,hamilton-mote/RIOT-OS,RBartz/RIOT,dailab/RIOT,zhuoshuguo/RIOT,FrancescoErmini/RIOT,mtausig/RIOT,gautric/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,jfischer-phytec-iot/RIOT,beurdouche/RIOT,mfrey/RIOT,backenklee/RIOT,zhuoshuguo/RIOT,josephnoir/RIOT,adjih/RIOT,authmillenon/RIOT,rajma996/RIOT,Hyungsin/RIOT-OS,Ell-i/RIOT,ant9000/RIOT,miri64/RIOT,OlegHahm/RIOT,neumodisch/RIOT,adrianghc/RIOT,authmillenon/RIOT,altairpearl/RIOT,tfar/RIOT,dailab/RIOT,OlegHahm/RIOT,LudwigKnuepfer/RIOT,kb2ma/RIOT,shady33/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,kb2ma/RIOT,l3nko/RIOT,roberthartung/RIOT,rakendrathapa/RIOT,ant9000/RIOT,wentaoshang/RIOT,RubikonAlpha/RIOT,brettswann/RIOT,kerneltask/RIOT,miri64/RIOT,shady33/RIOT,d00616/RIOT,herrfz/RIOT,cladmi/RIOT,neiljay/RIOT,RBartz/RIOT,kaspar030/RIOT,ant9000/RIOT,lebrush/RIOT,tfar/RIOT,kYc0o/RIOT,rajma996/RIOT,tfar/RIOT,wentaoshang/RIOT,adrianghc/RIOT,biboc/RIOT,Yonezawa-T2/RIOT,adrianghc/RIOT,gautric/RIOT,roberthartung/RIOT,kYc0o/RIOT,rakendrathapa/RIOT,A-Paul/RIOT,beurdouche/RIOT,x3ro/RIOT,wentaoshang/RIOT,RBartz/RIOT,mfrey/RIOT,x3ro/RIOT,immesys/RiSyn,jremmert-phytec-iot/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,smlng/RIOT,tfar/RIOT,smlng/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,immesys/RiSyn,ks156/RIOT,ant9000/RIOT,authmillenon/RIOT,alignan/RIOT,BytesGalore/RIOT,rousselk/RIOT,attdona/RIOT,ks156/RIOT,mziegert/RIOT,jremmert-phytec-iot/RIOT,A-Paul/RIOT,smlng/RIOT,syin2/RIOT,MohmadAyman/RIOT,yogo1212/RIOT,neumodisch/RIOT,FrancescoErmini/RIOT,LudwigOrtmann/RIOT,FrancescoErmini/RIOT,rakendrathapa/RIOT,josephnoir/RIOT,gebart/RIOT,zhuoshuguo/RIOT,hamilton-mote/RIOT-OS,Yonezawa-T2/RIOT,malosek/RIOT,MohmadAyman/RIOT,Hyungsin/RIOT-OS,jremmert-phytec-iot/RIOT,l3nko/RIOT,LudwigOrtmann/RIOT,TobiasFredersdorf/RIOT,RIOT-OS/RIOT,gebart/RIOT,malosek/RIOT,smlng/RIOT,LudwigOrtmann/RIOT,adjih/RIOT,kbumsik/RIOT,jfischer-phytec-iot/RIOT,BytesGalore/RIOT,BytesGalore/RIOT,mziegert/RIOT,TobiasFredersdorf/RIOT,miri64/RIOT,mfrey/RIOT,basilfx/RIOT,jbeyerstedt/RIOT-OTA-update,OTAkeys/RIOT,l3nko/RIOT,biboc/RIOT,plushvoxel/RIOT,RIOT-OS/RIOT,immesys/RiSyn,OTAkeys/RIOT,lebrush/RIOT,lebrush/RIOT,plushvoxel/RIOT,d00616/RIOT,TobiasFredersdorf/RIOT,lebrush/RIOT,RubikonAlpha/RIOT,alignan/RIOT,RubikonAlpha/RIOT,aeneby/RIOT,OlegHahm/RIOT,x3ro/RIOT,dkm/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,brettswann/RIOT,x3ro/RIOT,RBartz/RIOT,kaleb-himes/RIOT,jbeyerstedt/RIOT-OTA-update,LudwigOrtmann/RIOT,kaspar030/RIOT,altairpearl/RIOT,kaleb-himes/RIOT,Josar/RIOT,altairpearl/RIOT,ks156/RIOT,adjih/RIOT,altairpearl/RIOT,mtausig/RIOT,wentaoshang/RIOT,herrfz/RIOT,dkm/RIOT,jbeyerstedt/RIOT-OTA-update,kbumsik/RIOT,RIOT-OS/RIOT,neiljay/RIOT,neumodisch/RIOT,Ell-i/RIOT,toonst/RIOT,attdona/RIOT,MohmadAyman/RIOT,LudwigOrtmann/RIOT,kaspar030/RIOT,neumodisch/RIOT,gebart/RIOT,yogo1212/RIOT,TobiasFredersdorf/RIOT,basilfx/RIOT,alignan/RIOT,immesys/RiSyn,attdona/RIOT,Hyungsin/RIOT-OS,shady33/RIOT,avmelnikoff/RIOT,d00616/RIOT,syin2/RIOT,binarylemon/RIOT,gebart/RIOT,yogo1212/RIOT,jbeyerstedt/RIOT-OTA-update,zhuoshuguo/RIOT,jbeyerstedt/RIOT-OTA-update,stevenj/RIOT,l3nko/RIOT,RubikonAlpha/RIOT,rfuentess/RIOT,rajma996/RIOT,stevenj/RIOT,rousselk/RIOT,aeneby/RIOT,neumodisch/RIOT,l3nko/RIOT,MohmadAyman/RIOT,gautric/RIOT,dailab/RIOT,herrfz/RIOT,gebart/RIOT,FrancescoErmini/RIOT,kerneltask/RIOT,aeneby/RIOT,rousselk/RIOT,beurdouche/RIOT,A-Paul/RIOT,x3ro/RIOT,josephnoir/RIOT,ks156/RIOT,FrancescoErmini/RIOT,herrfz/RIOT,kbumsik/RIOT,kYc0o/RIOT,avmelnikoff/RIOT,yogo1212/RIOT,kaleb-himes/RIOT,BytesGalore/RIOT,backenklee/RIOT,Yonezawa-T2/RIOT,beurdouche/RIOT,d00616/RIOT,neiljay/RIOT,adjih/RIOT,MohmadAyman/RIOT,binarylemon/RIOT,biboc/RIOT,Josar/RIOT,cladmi/RIOT,herrfz/RIOT,backenklee/RIOT,asanka-code/RIOT,rousselk/RIOT,roberthartung/RIOT,jasonatran/RIOT,binarylemon/RIOT,FrancescoErmini/RIOT,dkm/RIOT,rfuentess/RIOT,avmelnikoff/RIOT,immesys/RiSyn,kYc0o/RIOT,rajma996/RIOT,d00616/RIOT,brettswann/RIOT,yogo1212/RIOT,Ell-i/RIOT,roberthartung/RIOT,kaleb-himes/RIOT,syin2/RIOT,binarylemon/RIOT,jremmert-phytec-iot/RIOT,thomaseichinger/RIOT,stevenj/RIOT,toonst/RIOT,zhuoshuguo/RIOT,altairpearl/RIOT,malosek/RIOT,rfuentess/RIOT,kerneltask/RIOT,thomaseichinger/RIOT,thomaseichinger/RIOT,smlng/RIOT,adrianghc/RIOT,plushvoxel/RIOT,kerneltask/RIOT,Josar/RIOT,l3nko/RIOT,mtausig/RIOT,kb2ma/RIOT,Yonezawa-T2/RIOT,basilfx/RIOT,BytesGalore/RIOT,RBartz/RIOT,stevenj/RIOT,backenklee/RIOT,toonst/RIOT,dailab/RIOT,basilfx/RIOT,josephnoir/RIOT,LudwigKnuepfer/RIOT,kaspar030/RIOT